Leica DM750 M Manuel utilisateur

Leica DM750 M

Manual

Leica DM750 M Manual 2

Table of Contents

Safety instructions 3

Safety Notes 4

Instructions on use 5

Instructions on use (continued) 6

Assembling the Leica DM750 M 7

Assembling the Incident Light Axis 8

Assembling the Viewing Tubes 9

Leica EZ Viewing Tube with Integrated Eyepieces 10

Leica EZ Viewing Tube – integrated eyepieces (cont.) 11

Leica Standard Tube with Separate Eyepieces 12

Eyecups 13

Installing Objectives 14

Conversion to Incident Light Polarization 15

Use 16

Switching on the Microscope 17

Modifying the Aperture Diaphragm 18

Illumination Scenarios 19

Illumination Scenarios (continued) 20

Using Specimen Holders 21

Automatic Shutoﬀ of Illumination 22

Conversion and Use with Transmitted Light 23

Optional Koehler Illumination 24

Installing the Condenser 25

Installing the condenser (continued) 26

Switching on the Microscope 27

Complete Condenser Centering 28

Complete Condenser Centering (cont.) 29

Using the Condenser 30

Preparation for Viewing a Specimen Slide 31

Focusing 32

Viewing Tube Adjustment 33

Viewing Tube Adjustment (cont.) 34

Viewing Tube Adjustment (cont.) 35

Koehler Conﬁguration 36

Koehler Conﬁguration (cont.) 37

Automatic Shutoﬀ of Illumination 38

Care and Repair Instructions 39

Care Instructions 40

Accessories, Maintenance and Repair 41

Specications and Dimensions 42

Electrical Data and Ambient Conditions 43

Dimensions (in mm) 44

Leica DM750 M Manual 3

Safety instructions

Leica DM750 M Manual 4

Before installing, operating or using the

instrument, it is mandatory to read this

user manual. In particular, please observe all

safety instructions.

The "Safety Concept" brochure contains additi-

onal safety information regarding service work,

requirements and the handling of the micro-

scope, the electrical and other accessories as

well as general safety instructions.

You can combine individual system articles with

articles from external suppliers. Please read the

user manual and the safety instructions of the

supplier.

To maintain the unit in its original condition

and to ensure safe operation, the user must

follow the instructions and warnings contained

in these user manuals.

Warning of a danger

This symbol indicates especially impor-

tant information that is mandatory to

read and observe. Failure to follow these inst-

ructions may pose hazards to personnel, cause

instrument malfunctions or damage the instru-

ment.

Hazardous electrical voltage

This symbol indicates especially impor-

tant information that is mandatory to

read and observe. Failure to follow these inst-

ructions may pose hazards to personnel, cause

instrument malfunctions or damage the instru-

ment.

Important information

This symbol indicates additional infor-

mation or explanations that intend to

provide clarity.

EC Declaration of Conformity

Electrically operated accessories are construc-

ted based on the state of the art of technology

and are provided with an EC Declaration of

Conformity.

Safety Notes

Contact address

Leica Microsystems (Schweiz) AG

Industry Division

Max Schmidheiny Strasse 201

CH-9435 Heerbrugg (Switzerland)

Leica DM750 M Manual 5

Intended use

The DM series microscopes by Leica are opti-

cal instruments for improving the visibility of

objects through magniﬁcation and illumina-

tion. They are used for observing and docu-

menting.

Place of use

Use the instrument in enclosed,

dust-free rooms at +10 °C to

+40 °C only. Protect it from oil, chemicals and

extreme humidity. It must be at least 10 cm

from the wall and away from ﬂammable subs-

tances.

Interference

Avoid large temperature ﬂuctuations, direct

sunlight and vibrations. These conditions

can distort measurements and micrographic

images.

In warm and warm-damp climatic zones,

the individual components require

special care in order to prevent the build-up of

fungus.

Use in clean rooms

Leica DM series microscopes can be used in

clean rooms without any problems.

Handling electrical components

Never install any other plug (NEMA

5-15P) or unscrew any mechanical

components unless expressly instructed to do

so in the instructions.

The microscope must be connected to a

grounded socket.

Always position the microscope so that

you can disconnect it from the power

supply at any time. The power cable is provided

as the power disconnect device.

Instructions on use

Leica DM750 M Manual 6

Intervention from the user

The microscopes of the DM series contain

no components that can be maintained

or repaired by the user. Exceptions are menti-

oned speciﬁcally in this manual.

Unless otherwise speciﬁed in this

manual, repair and service work may

be carried out by authorized Leica technicians

only.

Unauthorized alterations to the instru-

ment or noncompliant use shall void all

rights to any warranty claims.

Maintenance

Leica DM series microscopes are basi-

cally maintenance-free. To ensure that it

always operates safely and reliably, we recom-

mend that you take the precaution of contac-

ting the responsible service organization. Here

you can arrange for periodic inspections and

conclude a maintenance contract (recommen-

ded).

Accessories

Only those accessories may be used that are

listed in this user manual or for which safe use

has been conﬁrmed by Leica Microsystems.

Danger of infection

Direct contact with eyepieces is a poten-

tial transmission method for bacterial

and viral infections of the eye. The risk can be

kept to a minimum by using personal eyepieces

for each individual or detachable eyecups.

Instructions on use (continued)

Leica DM750 M Manual 7

Assembling the Leica DM750 M

Leica DM750 M Manual 8

Assembly

1. Place the incident light axis with the heat

sink facing backwards onto the tripod

mount.

2. Align the incident light axis according to

the tripod geometry.

3. Fasten the incident light axis into place by

tightening the setscrew.

Assembling the Incident Light Axis

Leica DM750 M Manual 9

There are two types of viewing tube.

Identify which viewing tube you have:

Type 1: Leica EZ Viewing Tube with integrated

eyepieces

Type 2: Standard tube with separate eyepieces

Assembly

1. Loosen the setscrew (on top of the stand)

using the Allen key provided.

2. Set the dovetail into the tripod mount and

tighten the setscrew carefully. This way,

the tube automatically shifts to the correct

position on the optical axis of the micro-

scope.

Assembling the Viewing Tubes

Leica DM750 M Manual 10

3. Reinstall the Leica EZ Viewing Tube onto

the stand.

4. Tighten the wingscrew using the wrench

included in the delivery package.

Leica EZ Viewing Tube with Integrated Eyepieces

Loosen the setscrew at the stand or

replace the setscrew with the optional

wingscrew to rotate the Leica EZ Viewing Tube.

1. In order to use the wingscrew, remove the

setscrew that was delivered with the stand.

2. Detach the wing screw part completely

before the screw is used on the stand.

Leica EZ Viewing Tube with integrated eyepieces

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